Hedghog PSC is a homebrew programmable standards converter. From a 625 line input is capable of generating a wide range of Television line standards. It is coupled with a versatile programmable modulator that uses two MC44BS373.
On this page you will find the files required to build it.
All material including Downloads on these pages are provided 'as is' without warranty of any kind, either expressed or implied.
FEATURES OF CONVERTER
The converter can generate the following
FEATURES OF MODULATOR
28.5 to 56.25 MHz step 15.625 KHz
56.25 to 112.5 MHz step 31.250 KHz
112.5 to 225 MHz step 62.500 KHz
225 to 450 MHz step 125 KHz
450 to 900 MHz step 250 KHz
All Resistors, Capacitors and Inductors are 0805 size.
All Capacitors are ceramic multilayer types.
Where given manufacturers part numbers are given as examples alternative parts may also suit.
The PCB is double sided and measures 100 mm X 89.5 mm.